Dongsan is in north-west Oji Island and hosts Dongsan Quarry — a surface-mining operation that is the only source of Limestone in the game.
Demand sinks
Limestone from Dongsan is demanded by the Nobong Cement Factory (cement), the Nobong Quicklime Factory (quicklime), and the Ara steel mill.
Adjacent terrain
The desert area near Dongsan and Nobong is open terrain full of large sand dunes and is widely used by the community for off-roading and rallies.